A large bio-molecule is estimated to have a spherical shape with a radius of 25.0 nanometers. What is the volume of the bio-molecule in in^3?
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The volume of a sphere has an equation of 4/3πr^3. So just plug in 25 for r.
4/3π(25.0)^3 = 4/3π15625 = 62500/3π nm^3
4/3π(25.0)^3 = 4/3π15625 = 62500/3π nm^3